What is the proper installation process for a standpipe drain for a washing machine?

To install a standpipe drain for a washing machine, first locate a suitable area near the washing machine where the standpipe can be installed. The standpipe should be at least 2 inches in diameter and extend at least 18 inches above the trap. Connect the standpipe to the existing Plumbing using appropriate fittings and secure it in place. Make sure the standpipe is properly vented to prevent siphoning and backflow. Test the standpipe by running water through the washing machine to ensure proper drainage.